Download Tides and Gravity: Understanding Tidal Bulges and Their Causes and more Quizzes Geology in PDF only on Docsity! TERM 1 The tides are considered an example of shallow-water waves because the tidal bulges have a wavelength that is on the order of _______________. DEFINITION 1 thousands of kilometers TERM 2 Of the following statements about the force of gravity between two bodies, which is/are true? DEFINITION 2 The force of gravity between two bodies increases with an increase in mass. The force of gravity between two bodies decreases as distance increases. The force of gravity between two bodies is most affected by a change in distance. TERM 3 Of the following statements about forces and tidal bulges, which is/are true? DEFINITION 3 On the side of Earth closest to the Moon, a tidal bulge will form as a result of an excess of gravitational force. Tidal bulges are produced on both sides of Earth from the Moon and the Sun. On the side of Earth facing away from the Sun, a tidal bulge will form due to an excess of centripetal force. TERM 4 Of the following statements about the tides, which is/are true? DEFINITION 4 -There are two tidal bulges on Earth caused by the Moon: one facing the Moon, and the other facing away from the Moon. - Although we observe the tides coming in and going out, in reality Earth is rotating into and out of various tidal bulges, which produces changing tides. -Both Earth and the Moon orbit around their common center of mass, called the barycenter. -The tides are caused by an imbalance between the centripetal force and the gravitational force of the Moon and the Sun. TERM 5 Of the following statements about the location of the barycenter of the EarthMoon system, which is/are true? DEFINITION 5 It is located at a point beneath Earth's surface within the mantle. It is located at the center of mass of the EarthMoon system. TERM 6 Of the following statements about the contribution of the Sun and the Moon to Earth's tides, which is/are true? DEFINITION 6 The lunar tidal bulges are about twice the size of the solar tidal bulges. The Sun's contribution to the tides is less than that of the Moon. The Moon exerts over twice the gravitational pull of the Sun on Earth's tides because of its proximity to Earth. TERM 7 Of the following statements about the monthly tidal cycle, which is/are true? DEFINITION 7 The full moon and the new moon affect the tides about the same. The full moon is associated with spring tide conditions. Spring tides occur twice a month. Neap tides occur twice a month. TERM 8 Of the following statements about lunar phases, which is/are true? DEFINITION 8 Over the few days of a waxing crescent moon, the tidal range decreases. Over the few days of a waxing gibbous moon, the tidal range increases. TERM 9 Of the following statements about tides in a simple tidal bulge model, which is/are true? DEFINITION 9 Tides are greatest when the Moon is at perigee and Earth is at perihelion. Neap tides result from destructive interference between the solar and lunar tidal bulges. Spring tides result from constructive interference between the solar and lunar tidal bulges. A lunar or solar eclipse can occur only when the Moon is in syzygy. TERM 10 Of the following statements about tidal patterns and tidal charts, which is/are true? DEFINITION 10 A mixed tidal pattern has two lows of unequal height and two highs of unequal height every tidal day. The tidal range is the difference in height between a high tide and a low tide. A semidiurnal tidal pattern has two low tides every tidal day. A tidal day is 24 hours and 50 minutes long
